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Notice:Undefined variable: optionalUserInfo in /www/htdocs/w0090330/_sd_p/core/Filechecks.php on line 97

Backtrace -->

#0 Piwik\Error::errorHandler(...) called at [/www/htdocs/w0090330/_sd_p/core/Filechecks.php:97]
#1 Piwik\Filechecks::dieIfDirectoriesNotWritable(...) called at [/www/htdocs/w0090330/_sd_p/core/FrontController.php:313]
#2 Piwik\FrontController->init(...) called at [/www/htdocs/w0090330/_sd_p/core/dispatch.php:33]
#3 require_once(...) called at [/www/htdocs/w0090330/_sd_p/index.php:46]

If this doesn't work, you can try to create the directories with your FTP software, and set the CHMOD to 0755 (or 0777 if 0755 is not enough). To do so with your FTP software, right click on the directories then click permissions.